No, Libby said under oath Russert told him about Wilson's wife and he was surprised to hear it. Libby and Russert both agree the conversation took place but Russert denies telling him about the wife and in fact says no such discussion of her took place at all. And there was the issue of Libby saying he was surprised.
However, he also told the FBI up front about hearing it from Cheney back in June but hadn't remembered it, just had a note about it so it's hard to imagine why he'd fabricate such a conversation with Tim Russert of all people.
And finally, Russert's memory and very credibility were brought into question in the trial.
I still maintain that if he had followed what Rove did and gradually came clean as more facts came out, he wouldn't have been prosecuted. But he stuck with a story that frankly isn't that credible. There isn't a poster on this board that would believe that story from a Democratic senior White House official.